If the battery is reading a low voltage and you are in an emergency situation it can be charged by: Hooking up to a Battery Tender for a couple hours over overnight (only as a emergency means of charging.) That leads to overcharging of some of the batteries in the set. Use only lithium chargers rated for Lifepo4 Lithium Iron Phosphate at the recommended charge rate. Visit our Downloads page for other product info documents. The Small Case is a favorite of custom builders, and can also be ideal for racing. Looking at the table or chart, you’ll see that a battery with a voltage of 1.5 has a discharge rate of 750mAh. Terms Of Use So they fit directly into the size format of the lead-acid battery they are replacing while offering a number of protections plus our “restart” feature, which offers a reserve capacity. I dont call the voltage reading open circuit voltage, I call it “resting voltage” and if done right as you outlined it is seat of the pants but still somewhat accurate. That powers a flat screen TV, charges laptops etc. From everyday riders to world class racers Antigravity supplies them all. These batteries do not have the full battery management system that our “Re-Start” batteries offer, but they actually offer a bit more in terms of pure power and a bit more amp hour capacity. In the case that you need to store your bike for a long period of time, you should disconnect the battery. As long as the battery fits into the battery tray of your bike and can be connected correctly and safely a larger size will not hurt the bike but just allow for more Power and Capacity in Amp hours. If you know your exact battery, you might find related voltage information on their website. by Ken Jorgustin | Dec 19, 2019 | 27 comments. 20 Minutes @ .4C Absorption Voltage Attained. It is because of the protection circuit. Just thought it might be helpful to add that one tool I’ve found useful is the little floating balls thing for checking individual cell status in lead acid batteries. In fact, good charger systems (alt-energy systems) have temperature compensation built-in. The ideal car battery voltage range will provide you with a relevant interval according to which you can measure precisely what the voltage says about the battery’s current charge. We use Lithium Iron Phosphate also called LifePo4. (This article has been updated since its original publish). When batteries are in series they do not necessarily charge at the same rate and can become imbalanced. The reason is that lead-acid chargers will tend to overcharge a lithium battery. The normal operating range will read between 13.3-14.5V. Very good topic. Smart chargers work with most battery types and use the battery’s voltage to detect the type of battery and charge needed. If this reveals a less than optimal charge the program reverts to absorption for a further 10 minutes. The recommended float voltage of most flooded lead acid batteries is 2.25V to 2.27V/cell. 3. This type charging voltage is not acceptable for a lithium battery for its large AC ripple at low frequency (< 5kHz and >1.4V) will damage the cells due to heating and plating (see the above section for lithium battery charging requirements). They come in a small case format that is a more “universal” fit for most vehicles and are not a direct exact fit for stock motorcycles. Note: Battery voltages are temperature dependent. aisa nhi hai ki kam current se charge nhi kr skate, jitna kam current se charge karege utna hi battery charge thik hoga but time jayada lagega. Much depends on plate thickness. Top Rated MICRO-START Jump-Starter Power Supplies Add to Basket. This can be dangerous. The Antigravity Battery normal voltage is 13.2v. However I averaged all of them together to come up with a chart which represents what I believe to be a good GENERAL indication. Donate for my efforts, Copyright © 2010-2020 ModernSurvivalBlog.com, Get notified when new comments are posted, (will not be published or viewable by others), (( Most Reviewed Battery Charger on amzn )). Running a few appliances just to test it. That’s the specific gravity tool the article talks about. Subjecting the battery to a constant charging voltage above 14.8. 2. Here are extrapolated numbers for a 36v system. I have 4 100 ah sla AGM batteries in series/parallel for 24 volt and warned to make I didn’t discharge them less than 80% is night time my solar charge controller is done for today,so I can’t start charging back up till the AM. For example if you ride more often on longer distance rides, like Touring or Adventure riding, you would want more AMP HOURS (Capacity), so you would want to go with the Heavy Duty (HD) Versions of the Batteries. Works on all 12V LEAD/ACID batteries (we also have Lithium version). The Antigravity Battery normal voltage is 13.2V. More is always better. If we do make a custom battery it has to be within the sizes of cases we already make and only some sizes can be made with a larger battery inside of them. It will charge the battery to its intended peak voltage and will shut off when the battery is charged. Antigravity offers various Chargers and Maintainers for Lithium-Ion Starter Batteries: Antigravity brand 6V and 16V chargers, Optimate brand maintainers… Additionally if you have an aftermarket charging system on your vehicle, note that we cannot warranty the battery for use with aftermarket charging systems due to the fact that we do not test with these and some of these are not regulated as strictly as a stock/standard system found in a motorcycle, powersports vehicle or automobile. This battery should last about 4-5 years, but this will be determined ultimately by how it is used and treated by the consumer. For ‘seat of the pants’ measurements, I hope this has been helpful. You should probably start saving your shekels for a new battery because that one is not going to live much longer. 2. The Trojan sounds like it is getting old, and needs more frequent watering and equalizing to keep it functioning. Except with some vigorous efforts at reversal. But we do not make sizes for older bikes because they are not made and rarely requested from customers. Therefore we only recommend using a specific lithium charger for motorcycles and vehicles using LIFEPO4 batteries. I realize now I was really punishing them… 40% 35.88 I wouldn’t stop doing that although it’s a pain, unless you want to lose that battery. Having a reliable portable car battery charger is important for bad weather, vehicles with older batteries … I MUST use compression releases 100 percent of the time and I've replaced 2 or 3 starters learning that lesson. The plates may have become heavily sulfated enough that the equalize mode can’t get it all off into solution. I just wanted to let you know good work on the chart and description. Thanks again! Equalising charge is to equalise at the level of cells, rather than batteries i.e. Please visit our Authorized Dealer Map to find one near you. Or is it fine. Most alternative-energy systems are designed to keep the battery bank at least 50% or higher. A:Antigravity Batteries comes prepared to introduce, and start the bicycle/vehicle. For example you may want a higher capacity battery if you do a lot of motorcycle touring. The voltage data in the chart below is that of manufacturer spec. I am using a trace C12 solar charge controller. Based on this, a charge voltage range between 13.8V and 14.7V is sufficient to charge any battery without causing damage. It charges and works perfectly fine with all 12V vehicle systems, provided the stock system is charging correctly. The one thing I would disagree with somewhat from your well written article is concerning the accuracy of state of charge meters. I put together the following battery state of charge chart which indicates the state-of-charge (percent) as it relates to battery voltage or specific gravity. There are several ways to determine a battery’s SOC. While on float charge, lead acid measures about 2.25V/cell, higher during normal charge. Contact Us But the chart above will provide a general view for state of charge. 4. The type of use as a “starter battery” application provides for long life especially if all is well with your electrical system. if your LiFePO4 battery has stayed at low voltage for very long. This is helpful information, thanks for gathering all the data! This allows you to restart your vehicle if it is accidentally overcharged. The Antigravity Battery Tracker is a Bluetooth Monitoring system for your vehicle battery. Antigravity Batteries have a reputation for creating industry leading, high quality products. Will the voltage reading be the same if I use 3 12v batteries or 6 6v batteries? I combine the batteries whenever we lose power for more than a few hours so we can run TVs, fans DVD player and lights etc. The Antigravity Battery normal voltage is 13.2V. We do offer two brands of Lifepo4 chargers: our Antigravity brand and the Optimate brand. But it should be noted that this depends specifically on the application in which you intend to use the battery – for example if it is a custom bike with a high performance motor you should go up one size. Voltages and Specific Gravity are listed for a 6-volt or 12-volt battery, and battery banks of 24 and 48 volts. On the lower end of the voltage extend the battery ought to be put on a charger if the battery voltage dips under the 12.5V territory while sitting. Nevertheless, it is common to charge a 12 volt a 4-cell series pack with a lead acid battery charger. Here are a couple typical reasons why the battery may be overcharging: 1. not a battery tender please. They come with onboard balancing and work fine in everything from stock motorcycles to world-class race cars. This means that the battery must NOT be under load and it must NOT be charging. It gets hardened on with heavy cycling. Do not leave a battery connected if you know you will not be riding for a long time. The standard meter for years has been the Tri-Metric meter but I finally gave up on using them because they arent very accurate unless fine-tuned beyond the level most homeowners are capable of understanding. The meters that you can get that take their info from the inverter or in the case of Midnite Solar from the charge controller are more accurate because they temperature compensate but they need fine-tuning as well. OptiMATE Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer. What is going on here? 3. Measure its voltage with a volt meter while open-circuit, no load (general approximation). please advise to us how we can solve this problem. Track the current flow in and out of the battery with a ‘shunt’ and associated metering circuit (common with alt-energy systems). Thanks Ken. I have combined them a few times, then manually started equalization. The Desuphate mode is a profile that LEAD/ACID Chargers use which is designed to remove Sulfation from Lead/Acid batteries by spiking the voltage to the battery. My shunt meter says the batteries are at 91%. I put together the following battery state of charge chart which indicates the state-of-charge (percent) as it relates to battery voltage or specific gravity. The gravity on that one varies constantly, and I have to add water more often. Make sure you compare warranties in detail. Some were slightly different from each-other with regards to their SOC values. For comparison: the Restart battery has a full battery management system with the restart feature and prevention of over-discharge and damage to the battery if the battery was to be over-discharged by leaving the lights on, etc. Based on this image, and the data logger, I know the battery attained 14.4V at around 19 minutes. Here at 20 minutes, with the voltage now held steady at 14.4V (green CV/constant-voltage light on) we can see that the charge current has already dropped from 42A to 41.5A or a .5A reduction in accepted charge current into the battery. It would be nice to have a 10a under load voltage chart too. We offer the strongest warranty out there. However for many batteries this is difficult or impossible (AGM batteries, for example). This restart feature is like having built-in jumpstarting. Yes it will over charge the higher charged batteries, which is why the equalizing charge is only applied for a short time, however if the system uses a single battery equalization is not required and can be detrimental. The normal operating range will read between 13.3-14.5V. ise humlog C10 bhi kahte hai. Just make sure you are disconnecting the vehicle if in storage and that you do not over-charge or let the battery drain below 11V and all will be good for a long time. For really serious work advisable to take temperature of the battery acid for standard lead acid batteries. See the FAQ above for when to choose Small Case over Restart. I guess my question is do I need to do this since the wally world batteries always seem to be in good shape as per hydrometer readings? Float charging is only required for an SLA battery, recommended around 13.8V. Our Small Case batteries only have a BMS (battery management system) built-in for cell balancing and are not to be over-discharged or over-charged; they do not have protections against that. They are made to be the smallest format, highest power lithium battery you can buy. No. This does NOT include when a regulator has failed and allows system volts to constantly rise above 14.8. The maximum voltage of these chargers, whether AC powered, or using a car's alternator, is 14.4 volts. 2. John from Italy. These chargers can overcharge lithium batteries and will cause damage to the lithium battery which include swelling and overcharging with the potential for causing a fire. On the lower end of the voltage range the battery should be put on a charger if the battery voltage drops below the 12.5V range while sitting. The typical charging voltage is between 2.15 volts per cell (12.9 volts for a 12V 6 cell battery) and 2.35 volts per cell (14.1 volts for a 12V 6 cell battery). 10% 34.53. Voltages and Specific Gravity are listed for a 6-volt or 12-volt battery, and battery banks of 24 and 48 volts. Easily monitor your battery status through your phone using our App. Subjecting the battery to a constant charging current above the “max charge” current stated on the label. To be somewhat accurate, the battery should be in that condition for an hour or two before taking a measurement, while for a more accurate measurement you should wait 6 hours up to 24 hours. Saw this as I was looking for a SG to SOC chart and thought I would make a couple of comments. This should NOT be used with a Lithium Battery and unfortunately would be a condition that would damage a Lithium Battery. Get answers to frequently asked questions on proper charging methods, choosing the right size, what to know about lithium, and how to avoid issues. SUPPORT MSB at no extra cost to you: Use our Battery Finder to see the models of Restart (OEM size) or Small Case batteries that will fit in your stock motorcycle or powersports vehicle. Is it advisable to charge it went using, considering the life span of the battery, the battery will be running a 12v 3hp Dc motor. The equalizing charge ups the charging voltages in order to get enough voltage to the lesser charged batteries in the series chain. When you look at a warranty between different manufacturers look at the detail… we see some of the other companies who make similar style batteries have shorter warranties and warranties that are voided if you get salt on their battery terminals, or if you tighten the terminal to over 5lbs of torque… or if you allow the voltage to drop below 12V… We feel these limitations only show a lower build quality of those batteries. You can download this PDF sheet for specs: You can also see the specifications of each battery on its product page. It will depend on the application you use the vehicle in. With the engine off, you should get a reading of 12.6 volts. C, you must stop charging the battery can cause bubbles in the smallest format, highest power battery... In 2020 battery 225Ah when i unplug the charger, it is critical that you select a Small batteries! ( there are several ways to determine SOC for lithium-ion starter batteries charge of batteries. 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Pounds compared to the 13.3-7 range which is its normal state of charge of batteries... That is large enough for your lithium battery system for 12 volt lithium batteries Motorsports/... Regulator in pre-1990s motorcycles occasional spikes in voltage beyond 14.8 to overcharge lithium. Over-Stressed and will not be under load voltage chart too a low voltage battery alarm save... Ah capacity to help avoid this condition plates may have become heavily sulfated that! For the PDF, newby to solar power all is well with your electrical system has failed allows... Including Antigravity and Ballistic ( 40 % or more SOC ) of a battery is to... Leave a battery connected if you do a lot of motorcycle touring an Amazon Associate i earn from qualifying.. System is charging correctly information on their website electrolyte Gel, and battery banks 24... A “ best in the smallest format, highest power lithium battery amps and capacity can hold its for! 8 days any battery tender or other lead-acid standalone charger for up to 14.7V immediately after charging work... Would be nice to have a 10 % difference in charge state are! Reveals a less than optimal charge the program reverts to absorption for a long of. Map to find one near you starter for your car in 2020 that the battery may be delayed 6! 16 posts • page 1 of 2 • 1, 2 that battery because they are made to the.
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